<?php

require_once 'HTMLPurifier/Strategy.php';
require_once 'HTMLPurifier/HTMLDefinition.php';
require_once 'HTMLPurifier/IDAccumulator.php';

require_once 'HTMLPurifier/AttrValidator.php';

/**
 * Validate all attributes in the tokens.
 */

class HTMLPurifier_Strategy_ValidateAttributes extends HTMLPurifier_Strategy
{
	
	function execute($tokens, $config, &$context) {
		
		// setup validator
		$validator = new HTMLPurifier_AttrValidator();
		
		$token = false;
		$context->register('CurrentToken', $token);
		
		foreach ($tokens as $key => $token) {
			
			// only process tokens that have attributes,
			//   namely start and empty tags
			if ($token->type !== 'start' && $token->type !== 'empty') continue;
			
			// skip tokens that are armored
			if (!empty($token->armor['ValidateAttributes'])) continue;
			
			// note that we have no facilities here for removing tokens
			$validator->validateToken($token, $config, $context);
			
			$tokens[$key] = $token; // for PHP 4
		}
		$context->destroy('CurrentToken');
		
		return $tokens;
	}
	
}

